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https://issues.apache.org/jira/browse/CAMEL-23284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Federico Mariani resolved CAMEL-23284.
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Resolution: Fixed
> Pipe YAML Kamelet properties with {{placeholder}} get URL-encoded, preventing
> property resolution
> -------------------------------------------------------------------------------------------------
>
> Key: CAMEL-23284
> URL: https://issues.apache.org/jira/browse/CAMEL-23284
> Project: Camel
> Issue Type: Bug
> Components: camel-yaml-dsl
> Environment: camel 4.18+
> Reporter: Federico Mariani
> Assignee: Federico Mariani
> Priority: Major
> Fix For: 4.18.2, 4.19.0
>
>
> When using a Pipe YAML with {{property}} placeholders in Kamelet source/sink
> properties, the placeholders are URL-encoded to %7B%7Bproperty%7D%7D before
> Camel's property placeholder resolver processes them. This prevents
> resolution entirely.
> *Reproducer*
> {code:yaml|title=pipe.yaml}
> apiVersion: camel.apache.org/v1
> kind: Pipe
> metadata:
> name: placeholder-bug
> spec:
> source:
> ref:
> kind: Kamelet
> apiVersion: camel.apache.org/v1
> name: timer-source
> properties:
> period: 5000
> message: "{{my.message}}"
> sink:
> uri: "log:result?showBody=true&showHeaders=false"
> {code}
> {code:bash}
> camel run pipe.yaml --prop=my.message="Hello Camel"
> {code}
> Expected: logs Hello Camel
> Actual: logs %7B%7Bmy.message%7D%7D
> Property-placeholders summary confirms the value is URL-encoded:
> {code}
> [timer-source.kamelet.yaml] message = %7B%7Bmy.message%7D%7D
> {code}
> Note: a plain route YAML using {{my.message}} in a constant expression
> resolves correctly with the same property. The issue is specific to Pipe
> Kamelet properties.
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